Tire-tread-removing device



' 1. M. ROLL.

TIRE TREAD REMOVING DEVICE.

APPLICATION FILED AUGJ4 1920.

1,393,576, Patented Oct. 11, 1921.

UNITED STATES PATENT OFFICE. I

JOHN M. ROLL, OF CORREGTIONV'ILLE, IOWA,

ASSIGNOR OF ONE-HALF TO CARL JACOBS AND ONE-FOURTH TO E. E. JACOBS, BOTH OF CORREGTIONVILLE, IOWA.

TlRE-TREAD' REMovING DEVICE.

Specification of Letters Patent.

Patented Oct. 11 1921.

To aZZ whom it may concern.

Be it known that I, JoHN M. ROLL, a citizen of the United States, residing at Corr-ectionville, in the county of VVoodbury and State of Iowa, have invented new and useful Improvements in Tire Tread i Removing Devices, of which the following is a specification.

This invention relates to a device for removing treads from tires and relates more particularly to my co-pending application Serial N 0. 393,717 filed July 2, 1920, and has for its primary object the construction of a device of few parts substantially associated and which may be manufactured at a relatively low cost without sacrificing the ef ficiency thereof.

An object of the invention is to form the blades and the rim portion of the wheel solid and case hardening blades so that same ma be properly sharpened and will perform the necessary work required.

Another object of the invention is the novel manner of constructing and associating the various parts so that they may be independently constructed at a reduction in the cost of manufacture and which may be quickly assembled.

lVith these and other objects in view the invention will be better understood from the following detailed description taken in connection with the accompanying drawing wherein:

F igurel is a side elevation of the device.

Fig. 2 is a vertical sectional view.

Fig. 3 is a side elevation ofv one of the disks.

Fig. 4 is a fragmentary view of a portion of the wheel.

Fig. 5 is a similar view of a modification.

Again referring to the drawing illustrating one of the many constructions of my invention the numeral 1 designates the rim portion of the wheel in the form of a ring having inwardly projecting lugs 2 each provided with a hole 3 for the purpose hereinafter described. This ring has formed integral therewith anumber of blades 4 each formed to have an inclined upper surface 5 and an inclined under surface 6 so that the cutting edge 7 will be spaced 2. predetermined distance from the surface of the ring. In practice these blades are hardened in any suitable'manner so as to increase the wearing qualities thereof and to insure a sharp cutting edge. The numerals 8 and 9v designate a pair of disks, each provided with a hub section 10, provided with a conical extension 11 fitting in a tapering recess 12 in the other disk and thus in a substantial manner I provide a hub for securing the wheel of a drive shaft. The blades are secured together and to the lu s 2 by the bolt 13.

lily this construction it will be seen that the parts may be readily separated by removing the blades and may beassembled very quickly at very little expense.

A feature of the invention is the novel manner of constructing and arranging the blades so that they may be sharpened from time to time without necessitating the removal of the blades.

Another feature is forming the blades as illustrated so that their position is permanently fixed and cannot become dislocated in any portion of the Wheel thereby insuring accurate operation of the blades upon the tread of a tire.

In Fig. 5 I have shown the blades provided with an arcuate shape cutting edge 14 so as to increase the cutting operation.

From the foregoing description taken in and disk 8 is further connection with the accompanying drawing it will be apparent that I provide a cutting wheel of very substantial construction in which the parts are associated in such a manner that they may readily be connected and disconnected with the additional advantage that the blades are permanently fixed and may be readily sharpened when necessary.

It is, of course, to be understood that the invention may be constructed in various other manners and theparts associated in diflerent relations and, therefore, I do not desire to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. A tire tread removing device comprising a ring having integral cutting blades projecting therefrom, having disks bolted to the ring and each provided with a hub extension.

2. A tire tread removing device comprising a one piece ring, blades formed integral therewith and projecting from the outer periphery of the ring, and hub disks detachably secured to the ring. V

3 A tire tread removing device comprising a ringfblades formed integral with the ring and projecting therefrom to providean inclined under surface and an inclined upper surface, and disks detachably bolted to the ring, each of said disks being formed 10 with a, hub section and one heyinga conical extension engaging in a recess in the other disk.

v i A the tread removingdevice compris ing a ring formed With a plurality of blades and having inwardly projecting lugs, and

upper disks bolted to the lugs, and each havinga hub section.

In testimony whereof I affix my signature.

JNO. M. ROLL. 

